/*
 * Copyright 2009-2010 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.chinadrtv.batch.admin.jobs.ozing.question;

import java.util.List;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.SessionFactory;
import org.springframework.batch.item.ItemWriter;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.orm.hibernate3.HibernateOperations;
import org.springframework.orm.hibernate3.HibernateTemplate;
import org.springframework.util.Assert;

import com.chinadrtv.user.dao.ozing.IOzingOrderDao;
import com.chinadrtv.user.dao.ozing.OzingDao;
import com.chinadrtv.user.model.UserOzingCardTx;
import com.chinadrtv.user.model.UserOzingOrder;

public class QuestionWriter implements ItemWriter<UserOzingOrder> {

	private static final Log log = LogFactory.getLog(QuestionWriter.class);

    @Autowired
	private IOzingOrderDao orderDao;

    @Autowired
	private OzingDao cardDao;

	private HibernateOperations hibernateTemplate;

	public void setSessionFactory(SessionFactory sessionFactory) {
		this.hibernateTemplate = new HibernateTemplate(sessionFactory);
	}

	public void setOrderDao(IOzingOrderDao orderDao) {
		this.orderDao = orderDao;
	}

	public void setCardDao(OzingDao cardDao) {
		this.cardDao = cardDao;
	}



	public void afterPropertiesSet() throws Exception {
		Assert.notNull(hibernateTemplate, "Hibernate session factory must be set");
		Assert.notNull(orderDao, "Delegate DAO must be set");
		Assert.notNull(cardDao, "Delegate DAO must be set");
	}

	/**
	 * @see ItemWriter#write(List)
	 */
	public void write(List<? extends UserOzingOrder> data) throws Exception {
		log.info("write-->" + data + "\t" + Thread.currentThread().getName());
		
		for (UserOzingOrder order : data) {
			orderDao.save(order);
			
			for (UserOzingCardTx tx : order.getOzingOrderDetail().get(0).getUserOzingCardTxs()) {
				cardDao.merge(tx.getUserOzingCard());
			}
		}
		
		try {
			hibernateTemplate.flush();
		}
		finally {
			// this should happen automatically on commit, but to be on the safe
			// side...
			hibernateTemplate.clear();
		}
	}
}
